Improvement in water-plugs or hydrants



M. HOGAN. Water-Plug 0'1 Hydrant.

No. 204,822. Patented June H, 1878..

aLl/1 N.FEIERS, PNOTOL|THOGRAPHER. WASHINGTON. D. C.

f of the lever h, which .is located in the waterf as an equivalent `forthelever h and rod i,

UNITED STATES PATENT OEEIGE.

MATTHEW HOGAN, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN WATER-PLUGS OR HYDRANTS.

Specitication forming part of Letters Patent No. 204,822, dated June 11,1878 5 application tiled March 7, 1878.

To all 'whom it may concern: Y

Beit known that I, MATTHEW HOGAN, of Hartford, in the county of Hartfordand State of Connecticut, have invented certain new and usefulImprovements pertaining to a Water- Plu g or Hydrant, of which thefollowing is a specification, reference being had to the accompanyingdrawings, in which- Figure- 1 is a view inI central vertical section.Fig. 2 is a view in cross-section on the plane denoted by the dottedline fr.

The letter a. denotes a stand-pipe, from the top or side of which thewater is delivered. lb denotes a shorter stand-pipe, in which the valveis located. c denotes a Water-way leading from beneath 'the valve, andconnecting` the two stand-pipes. d denotes a water-way through which thewater iinds laccess to the valve.

I will rst describe the valve.

The letter e denotes the valve seat, whichrises like a pipe end from thebottom of the stand-pipeb, or from a diaphragm therein. The letter fdenotes the body or casing ofthe valve, shutting down over thevalve-seat, so as to partially and gently shut oft' thewater in closing,before the packing g, which isl within the body f, comes squarely downon the valve-seat, and thus prevent that knocking which results when aflowing current of water is shut oft' by a sudden impulse.

This valve is operated through the agency way c, and the rod fi, whichpasses out at the upper end-0t` the stand-pipe a, its necessarylongitudinal motion being given by having the rod/'' screw-threaded andtaking intoi a female thread; or a lever or other customary means ofgiving longitudinal movement may be utilized for the purpose.

So far as the combination of the two standpipes, the connectingwater-way, the valve, and the means for operating the valve through thestand-pipe a. and the water-way c is concerned, I suggest 'as amodification, and

that a lateral arm may be fixed rigidly to the lower end of the rod i,and take the place of, the lever h.

I will now describe a means for emptying the stand-pipe a and water-wayc of water after the valve is closed.

On theA bottom 'of the water-way c is lliked. a lever-valve, j, which,through Weight or gravity, remains closed when the main valve vis open.When the main valve is closed, the

end of lever h comes down and strikes valve j in such fashion as to openit.

I will now describe my meansy for getting at the main valve.

On the top of the shorter stand-pipe b practically a part of :itl-islixed the removable cap-pipe 7c, intended to reach, when this apparatusis used for hydrant purposes, to the surface of the ground. It has aremovable cap, l. On the shoulder on rests the disk u, shutting olfwater from above it. It is held to place by the adjusting-screw o, whichmay reach downto disk n; or7 more conveniently, the short pillarp andits radial support r may be interposed.

l will now describe a gate for shutting 0E the water from this hydrant,so that it can be repaired, or the like. i

The letter s'I denotes the casing of the water-gate; t, the valve orgate proper, and t the valve-stem. of the gate-casing screws the disk u,with the valvestem passing through it, bearing the packing-box uf, withpacking beneath it.

The valve-stem is provided with the conduit o. When the valve is closed,as shown in the drawing, back-water escapes through this conduit tothechamber 'w above the disk u, from which it nds escape to the outside ofthe casing through the escape-orifice y,

This hydrant being nothing more thana large water-cock, its principlesof construction are applicable to smaller cocks.

I claim as my inventionl. In combination, water-Way d, valve f,

water-way c, lever h, and rod a', .all substan- .tially as described.

2. In combination, standpipe b, removable cap-pipe lr, removable cap l,disk (mand screw o.

3.1In combination, casing sf, valve't upon v stem t provided withconduit e, the disk a, chamber w, and escape-orifice y.'

In witness whereof` I hereto `set my hand.

MATTHEW-HOGAN. Witnesses:

` RoBT. F. GAYLORD, WM. E. .SIMoNns Into the upright partl sf

